Sound Navigation and Ranging (SONAR) is used to detect underwater objects. For this, its transmitter produces
Options:
Accepted Answer: (C) ultrasonic waves
Topic Covered: Physics
Key Concept: Mechanics, electricity, waves and thermodynamics
The correct option follows from the governing physical law or definition. “ultrasonic waves” is consistent with the required relationship between the quantities or phenomenon described.
The key is to apply the central fact, formula, definition or relationship tested in the question and then eliminate alternatives that do not satisfy it.